RMCS1206FT12K7 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT12K7 is a 12.7 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur composition and is designed for general-purpose applications requiring precision resistance values with tight tolerance specifications. The part is currently in active production status. Substitute parts are necessary when the primary manufacturer's inventory is unavailable, when specific application requirements demand alternative material compositions or certifications, or when supply chain optimization requires qualified alternatives from different manufacturers.

Substiute Parts

RMCS1206FT12K7

Stackpole Electronics IncIn Stock: 1147RMCS1206FT12K7 Datasheet

Current PartRFQ

CR1206-FX-1272ELF

Bourns Inc.In Stock: 25723CR1206-FX-1272ELF Datasheet

MFR RecommendedRFQ

CRCW120612K7FKEA

Vishay DaleIn Stock: 13024CRCW120612K7FKEA Datasheet

MFR RecommendedRFQ

ERJ-8ENF1272V

Panasonic Electronic ComponentsIn Stock: 91687ERJ-8ENF1272V Datasheet

MFR RecommendedRFQ

RC1206FR-0712K7L

YAGEOIn Stock: 10809RC1206FR-0712K7L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT12K7 is determined by strict equivalence across the following critical parameters:

• Resistance Value: 12.7 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.25W / 1/4W (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Compliance: ROHS3 Compliant, MSL 1 (Unlimited)

All four substitute parts meet these criteria. Variations in physical dimensions (length, width, height) within the 1206 package specification and differences in material features (anti-sulfur vs. moisture resistant vs. automotive AEC-Q200) do not affect functional substitutability for applications where the core electrical parameters are the determining factors.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status)

CR1206-FX-1272ELF (Bourns Inc.) and RC1206FR-0712K7L (YAGEO) are recommended as primary substitutes. Both parts maintain active production status and are suitable for new designs. CR1206-FX-1272ELF offers moisture-resistant thick film composition, while RC1206FR-0712K7L provides equivalent moisture-resistant characteristics. Both are ROHS3 compliant with MSL 1 rating.

Automotive-Qualified Substitutes

CRCW120612K7FKEA (Vishay Dale) is qualified to AEC-Q200 automotive standards and maintains active production status. This part is appropriate for applications requiring automotive-grade component certification.

Legacy Substitute (Not For New Designs)

ERJ-8ENF1272V (Panasonic Electronic Components) carries a "Not For New Designs" status and is AEC-Q200 qualified. This part should be used only when existing designs require continuity or when inventory constraints necessitate its use. New design implementations should prioritize parts with active production status.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMCS1206FT12K7 with any of the listed alternatives?

A: Yes, all four substitute parts are electrically and mechanically equivalent based on the critical parameters: 12.7 kOhms resistance, ±1% tolerance, 0.25W power rating, 1206 package, thick film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. All are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between anti-sulfur and moisture-resistant features?

A: Anti-sulfur composition (RMCS1206FT12K7) and moisture-resistant composition (CR1206-FX-1272ELF, RC1206FR-0712K7L) are different material formulations. Both are thick film resistors meeting the same electrical specifications. Selection between them depends on application environment requirements not specified in the core electrical parameters.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within the 1206 package specification. RMCS1206FT12K7 and RC1206FR-0712K7L measure 0.122" L × 0.061" W with 0.026" max height. CR1206-FX-1272ELF, CRCW120612K7FKEA, and ERJ-8ENF1272V measure 0.126" L × 0.063" W with heights ranging from 0.024" to 0.030". These variations remain within 1206 package tolerances and do not affect PCB footprint compatibility.

Q: Should I use ERJ-8ENF1272V for new designs?

A: No. ERJ-8ENF1272V carries a "Not For New Designs" status. For new design implementations, select from CR1206-FX-1272ELF, CRCW120612K7FKEA, or RC1206FR-0712K7L, all of which maintain active production status.

Q: Which substitute is best for automotive applications?

A: CRCW120612K7FKEA (Vishay Dale) is AEC-Q200 qualified and maintains active production status, making it the appropriate choice for automotive applications. CRCW120612K7FKEA is the only active automotive-qualified alternative in this substitution group.

Q: Are all substitutes available in Tape & Reel packaging?

A: Yes, all substitute parts are supplied in Tape & Reel (TR) packaging, matching the original RMCS1206FT12K7 packaging format.